plplot: fix compile problem on ubuntu 10.10 hosts (host's libm not found)

plplot/Makefile

@@ -28,7 +28,8 @@ include $(INCLUDE_DIR)/package.mk
 
 CMAKE_HOST_FLAGS=-DCMAKE_INSTALL_PREFIX=/usr \
 	     	-DDEFAULT_NO_DEVICES=ON \
-		-DPKG_CONFIG_EXECUTABLE=Not-Found -DDEFAULT_NO_BINDINGS=ON 
+		-DPKG_CONFIG_EXECUTABLE=Not-Found -DDEFAULT_NO_BINDINGS=ON \
+		-DCMAKE_EXE_LINKER_FLAGS=-lm
 
 ## Need host-compiled plplot build dir for cmake to work for the target
 define Host/Configure

plplot/patches/009-fix-libm.patch

@@ -0,0 +1,16 @@
+Index: plplot-5.9.7/cmake/modules/plplot.cmake
+===================================================================
+--- plplot-5.9.7.orig/cmake/modules/plplot.cmake	2011-05-26 20:55:13.000000000 +0200
++++ plplot-5.9.7/cmake/modules/plplot.cmake	2011-05-26 21:03:13.000000000 +0200
+@@ -481,9 +481,9 @@
+ # On windows systems the math library is not separated so do not specify
+ # it unless you are on a non-windows system.
+ if(NOT WIN32)
+-  find_library(MATH_LIB NAMES m PATHS /usr/local/lib /usr/lib)
++  find_library(MATH_LIB NAMES m PATHS /usr/local/lib /usr/lib /lib)
+   if(NOT MATH_LIB)
+-    message(FATAL_ERROR "Cannot find required math library")
++    message("Cannot find required math library, continuing anyway")
+   endif(NOT MATH_LIB)
+ endif(NOT WIN32)
+ # Must come after MATH_LIB is defined (or not).

plplot/patches/070-disable-pango.patch

@@ -1,7 +1,7 @@
 Index: plplot-5.9.7/cmake/modules/plplot.cmake
 ===================================================================
---- plplot-5.9.7.orig/cmake/modules/plplot.cmake	2011-02-15 22:31:43.000000000 +0100
+--- plplot-5.9.7.orig/cmake/modules/plplot.cmake	2011-05-26 20:25:37.000000000 +0200
-+++ plplot-5.9.7/cmake/modules/plplot.cmake	2011-02-15 22:32:09.000000000 +0100
++++ plplot-5.9.7/cmake/modules/plplot.cmake	2011-05-26 20:25:37.000000000 +0200
 @@ -493,7 +493,8 @@
  # =======================================================================
  # libpango support